Finding the Fourth Proportional to 15,660,097.80, 21,946,531.80 and 15,660,097.80
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Solution
The fourth proportional to 15,660,097.80, 21,946,531.80 and 15,660,097.80 is: 21,946,531.80
Step by Step Solution
- Step 1: Write the proportion equation
15,660,097.80 : 21,946,531.80 = 15,660,097.80 : x - Step 2: Convert to fraction form
15,660,097.80/21,946,531.80 = 15,660,097.80/x - Step 3: Cross multiply
15,660,097.80x = 21,946,531.80 × 15,660,097.80 - Step 4: Simplify right side
15,660,097.80x = 343,684,834,358,810.06 - Step 5: Solve for x
x = 343,684,834,358,810.06/15,660,097.80 - Step 6: Final answer
x = 21,946,531.80
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Why These Related Problems?
These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.